Garden Roof Assembly: Stormwater

Garden Roof® Assembly Blue Roof

Elevating Hydrotech’s Garden Roof Assembly by placing it on Permavoid®, a structural void component (available exclusively through Hydrotech) integrates the many advantages of a vegetative roof with the high water detention capabilities of a blue roof. Permavoid® provides a stable platform with an open space of 95% within the unit. The structural nature of Permavoid® is created by plastic tubes between the webbed top and bottom panels. This creates a platform onto which any number of Garden Roof® and Plaza Deck Assembly components can be installed.

Architectural pavers can be installed to create pedestrian spaces and to provide access to roof parapets and mechanical equipment. Garden Roof® components can be used to create extensive vegetative roofs on top of the Permavoid® units. Additionally, LiteTop® within the Garden Roof® Assembly can increase the water holding capacity of this composite Blue Roof assembly.

Recent Press

  • November 26, 2019

    Palo Alto, CA. (November 26, 2019) There are many reasons to incorporate a green or living roof into a design, including energy conservation, water management, and financial benefits.  For one project in Palo Alto,...

  • November 11, 2019

    Climate change and stormwater management

    A new color is emerging in the roofing field; after green roofs and white roofs, now here is the blue roof. The dense nature of urban areas, combined with the increased intensity of rain events and...

  • May 2, 2019

    CHICAGO, ILLINOIS (May 2, 2019) Very near Lake Michigan in Chicago, Northwestern Medical Center faced several challenges in bringing a new campus building to life. Designed by Perkins+Will, the project involves...

  • October 17, 2018

    Hydrotech, a recognized leader in the vegetative roofing market, today announced the availability of the Fourth Edition of the company’s widely acclaimed Garden Roof® Planning Guide. For the last five years, updated...